Nature of Light Flashcards
(3 cards)
1
Q
What mistake do you always make when calculating with electron volts?
A
Remember to not just change the sign of the power of ten when you are multiplying or dividing, as you would then also need to use the reciprocal of 1.6. Always keep (1.6x10^-19) in brackets.
2
Q
What is a photon?
A
A discrete packet of electromagnetic radiation.
3
Q
What is the mark scheme definition for the work function/threshold frequency?
A
The minimum incident photon energy/frequency required to release a photoelectron from the surface of a material.
